Cushioning device for footwear



FIG. 1 is a front top perspective view of a cushioning device for footwear showing our new design;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a side view thereof;

FIG. 5 is an opposite side view thereof;

FIG. 6 is a front view thereof; and,

FIG. 7 is a rear view thereof.

The broken lines depicting the remainder of the cushioning device for footwear form no part of the claimed design. 

CLAIM The ornamental design for a cushioning device for footwear, as shown and described. 